M2.7 earthquake — 66 km W of Petrolia, CA
An magnitude 2.7 earthquake occurred 66 km W of Petrolia, CA on Nov 1, 2026 at 12:31 UTC. The epicenter was at a depth of 1 km — a shallow earthquake. Shallow quakes concentrate their energy near the surface, so they tend to produce stronger shaking close to the epicenter.
Event data
| Magnitude | M2.7 |
|---|---|
| Depth | 0.5 km |
| Coordinates | 40.353, -125.064 |
| Time | Nov 1, 12:31 UTC |
| Location | 66 km W of Petrolia, CA |
| USGS event ID | nc75460847 |
What this magnitude typically means
Very small earthquakes are usually only detected by instruments and are rarely felt. They are a normal part of background seismic activity. Tremor does not compute a single local shaking figure here, because how strong a quake feels at any address depends on distance, depth and local geology — open the interactive globe to explore the ShakeMap and estimated intensity.
Nearby recent earthquakes
| Magnitude | Distance | Time (UTC) | Location |
|---|---|---|---|
| M2.7 | 3 km | Oct 31, 23:21 UTC | 63 km W of Petrolia, CA |
| M2.9 | 38 km | Oct 30, 13:56 UTC | 29 km W of Petrolia, CA |
| M5.0 | 48 km | Nov 5, 04:56 UTC | 114 km W of Petrolia, CA |
| M2.7 | 257 km | Nov 2, 15:14 UTC | 7 km NW of The Geysers, CA |
| M2.5 | 270 km | Nov 2, 20:34 UTC | 8 km E of Lower Lake, CA |
| M2.8 | 271 km | Nov 2, 21:02 UTC | 8 km E of Lower Lake, CA |
Earthquake activity in this area
See this quake on the live 3D globeShakeMap, seismogram and aftershock forecastGet earthquake alertsWatchlists with email, push and Slack
Source: USGS earthquake catalog. Automated readings may be revised. Not for emergency use.